Preparation of barium hexaferrite coatings using atmospheric plasma spraying

Darja Lisjak; Kirsten Bobzin; Katharina Richardt; Marion Bégard; Giovanni Bolelli; Luca Lusvarghi; Arto Hujanen; Pertti Lintunen; Massimo Pasquale; Elena Olivetti; Miha Drofenik; Thomas Schläfer

doi:10.1016/j.jeurceramsoc.2009.01.028

Preparation of barium hexaferrite coatings using atmospheric plasma spraying

Darja Lisjak (Corresponding Author), Kirsten Bobzin, Katharina Richardt, Marion Bégard, Giovanni Bolelli, Luca Lusvarghi, Arto Hujanen, Pertti Lintunen, Massimo Pasquale, Elena Olivetti, Miha Drofenik, Thomas Schläfer

Research output: Contribution to journal › Article › Scientific › peer-review

36 Citations (Scopus)

Abstract

Thick coatings of barium hexaferrite with the compositions BaFe₁₂O₁₉ and BaCoTiFe₁₀O₁₉ were prepared using atmospheric plasma spraying (APS) technology. The coatings were prepared from pre-reacted powders of the desired composition. The as-deposited coatings were poorly crystallized, but their crystallinity was improved with a subsequent annealing. The crystallization mechanism of the sprayed hexaferrites was studied during annealing up to 1300 °C, using X-ray powder diffraction combined with thermal analysis and with electron microscopy including microanalysis. Single-phase coatings were obtained after annealing treatments at 1100–1300 °C. Their magnetic properties showed that they would be suitable for absorbers at microwave and mm-wave frequencies, depending on the coating phase's composition, the crystallinity and the thicknesses.

Original language	English
Pages (from-to)	2333-2341
Number of pages	9
Journal	Journal of the European Ceramic Society
Volume	29
Issue number	11
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2009.01.028
Publication status	Published - 2009
MoE publication type	A1 Journal article-refereed

Keywords

Ferrites
thermal spraying
solid-state reaction
magnetic properties
dielectric properties

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10.1016/j.jeurceramsoc.2009.01.028

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title = "Preparation of barium hexaferrite coatings using atmospheric plasma spraying",

abstract = "Thick coatings of barium hexaferrite with the compositions BaFe12O19 and BaCoTiFe10O19 were prepared using atmospheric plasma spraying (APS) technology. The coatings were prepared from pre-reacted powders of the desired composition. The as-deposited coatings were poorly crystallized, but their crystallinity was improved with a subsequent annealing. The crystallization mechanism of the sprayed hexaferrites was studied during annealing up to 1300 °C, using X-ray powder diffraction combined with thermal analysis and with electron microscopy including microanalysis. Single-phase coatings were obtained after annealing treatments at 1100–1300 °C. Their magnetic properties showed that they would be suitable for absorbers at microwave and mm-wave frequencies, depending on the coating phase's composition, the crystallinity and the thicknesses.",

keywords = "Ferrites, thermal spraying, solid-state reaction, magnetic properties, dielectric properties",

author = "Darja Lisjak and Kirsten Bobzin and Katharina Richardt and Marion B{\'e}gard and Giovanni Bolelli and Luca Lusvarghi and Arto Hujanen and Pertti Lintunen and Massimo Pasquale and Elena Olivetti and Miha Drofenik and Thomas Schl{\"a}fer",

year = "2009",

doi = "10.1016/j.jeurceramsoc.2009.01.028",

language = "English",

volume = "29",

pages = "2333--2341",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier",

number = "11",

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TY - JOUR

T1 - Preparation of barium hexaferrite coatings using atmospheric plasma spraying

AU - Lisjak, Darja

AU - Bobzin, Kirsten

AU - Richardt, Katharina

AU - Bégard, Marion

AU - Bolelli, Giovanni

AU - Lusvarghi, Luca

AU - Hujanen, Arto

AU - Lintunen, Pertti

AU - Pasquale, Massimo

AU - Olivetti, Elena

AU - Drofenik, Miha

AU - Schläfer, Thomas

PY - 2009

Y1 - 2009

N2 - Thick coatings of barium hexaferrite with the compositions BaFe12O19 and BaCoTiFe10O19 were prepared using atmospheric plasma spraying (APS) technology. The coatings were prepared from pre-reacted powders of the desired composition. The as-deposited coatings were poorly crystallized, but their crystallinity was improved with a subsequent annealing. The crystallization mechanism of the sprayed hexaferrites was studied during annealing up to 1300 °C, using X-ray powder diffraction combined with thermal analysis and with electron microscopy including microanalysis. Single-phase coatings were obtained after annealing treatments at 1100–1300 °C. Their magnetic properties showed that they would be suitable for absorbers at microwave and mm-wave frequencies, depending on the coating phase's composition, the crystallinity and the thicknesses.

AB - Thick coatings of barium hexaferrite with the compositions BaFe12O19 and BaCoTiFe10O19 were prepared using atmospheric plasma spraying (APS) technology. The coatings were prepared from pre-reacted powders of the desired composition. The as-deposited coatings were poorly crystallized, but their crystallinity was improved with a subsequent annealing. The crystallization mechanism of the sprayed hexaferrites was studied during annealing up to 1300 °C, using X-ray powder diffraction combined with thermal analysis and with electron microscopy including microanalysis. Single-phase coatings were obtained after annealing treatments at 1100–1300 °C. Their magnetic properties showed that they would be suitable for absorbers at microwave and mm-wave frequencies, depending on the coating phase's composition, the crystallinity and the thicknesses.

KW - Ferrites

KW - thermal spraying

KW - solid-state reaction

KW - magnetic properties

KW - dielectric properties

U2 - 10.1016/j.jeurceramsoc.2009.01.028

DO - 10.1016/j.jeurceramsoc.2009.01.028

M3 - Article

SN - 0955-2219

VL - 29

SP - 2333

EP - 2341

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 11

ER -

Preparation of barium hexaferrite coatings using atmospheric plasma spraying

Abstract

Keywords

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